Hello, I am looking for simple solution to outb to parallel port. The program should run on Linux. I hope someone here already faced this problem. In C it would look like iopl(3/*mode*/); ioperm(0x378 /*PORT_BASE*/, 3 /*bytes*/, 1/*on*/); outb(0xff /* < data */, 0x378 /*DATA_REG*/); Any ideas welcome Regards, Daniel